<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <div id="app"></div>
    <script src="./src/react.js"></script>
    <script src="./src/react-dom.js"></script>
    <script src="./src/babel.js"></script>
    <script type="text/babel">
        function List() {
            let arr = []
            setTimeout(() => {
                arr = [1, 2, 3, 4, 5, 6]
            }, 2000)
            return (<ul>
                {
                    arr.map((item, index) => <li key={index}>{item}</li>)
                }
            </ul>)
        }
        class List2 extends React.Component {
            constructor() {
                super()
                this.state = {
                    arr: [],
                    time: ''
                }
            }
            // 相当于vue中的mount生命周期函数
            componentDidMount() {
                setTimeout(() => {
                    this.setState({
                        arr: ['甘翠文', '77', 'a77', 'ad777']
                    })
                }, 2000)
                setInterval(() => {
                    this.setState({
                        time: new Date().toLocaleString()
                    })
                })
            }
            render() {
                return (
                    <ul>
                        <p>{this.state.time}</p>
                        {
                            this.state.arr.map((item, index) => <li key={index}>{item}</li>)
                        }

                    </ul>
                )
            }
        }
        ReactDOM.render(
            <div>
                <List></List>,
                <List2></List2>,
            </div>,
            document.getElementById('app')
        )
    </script>
</body>

</html>